Mustang Cobra V8-4.6L DOHC VIN V (2000)
Courtesy Lamp: Initial Inspection and Diagnostic Overview
1. The interior lighting system is a Generic Electronic Module (GEM) controlled system.
2. Verify the customer concern by operating the interior lighting system.
3. Visually inspect for the obvious signs of mechanical and electrical damage.
VISUAL INSPECTION CHART
4. If the concern remains after the inspection, connect the scan tool to the Data Link Connector (DLC) located beneath the instrument panel and
select the vehicle to be tested from the scan tool menu. If the scan tool does not communicate with the vehicle:
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check that the program card is correctly installed.
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check the connections to the vehicle.
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check the ignition switch position.
5. If the scan tool still does not communicate with the vehicle, refer to the scan tool manufacturer's manual.
6. Carry out the DATA LINK DIAGNOSTIC TEST.
If the scan tool responds with:
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CKT914, CKT915 or CKT7O = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network (Information Bus).
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NO RESP/NOT EQUIP for GEM, go to Pinpoint Test A. See: Pinpoint Tests/Test A: No Communication With Generic Electronic Module
^
SYSTEM PASSED, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs and carry out self-test
diagnostics for the GEM.
7. If the DTCs retrieved are related to the concern, go to GEM Diagnostic Trouble Code (DTC) Index to continue diagnostics. See: Diagnostic
Trouble Code Descriptions
8. If no DTCs related to the concern are retrieved, proceed to Symptom Chart to continue diagnostics. See: Symptom Related Diagnostic Procedures
